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| Optimization of Controlled Rolling and Cooling Process on Low-alloy High-strength Quenched and Tempered Steel |
| CHEN Bing-Zhang |
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Abstract Low-alloy high-strength quenched and tempered steel rolling method and the cooling rate after rolling has been studied. The results showed that: test steel using different rolling methods and cooling rate to obtain different initial microstructure and mechanical properties before quenching, but they have the same microstructure and mechanical properties after quenching and tempering. Low-alloy high strength quenched and tempered steel suggested using one-stage rolling method, cooling rate should not be too low. Quenched and tempered steel after the tests have a high uniformity, as compared with the TMCP has superior strength and plasticity and strength and toughness.
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Received: 22 September 2009
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2010, Vol. 45 
